3 years ago

Write a real world problem that can be modeled by the equation 1.25=0.75x+50

1 answer:

8 0

Timmy's mother gave him $50 to go to the arcade, every time he played a game (x) he lost 75 cents, at the end of the day, after playing 65 games (x = -65), he had $1.25 left over.
So, $50 + $0.75 (-65) = $1.25

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4 Which of the following is a composite number between 80 ard 100?

Firlakuza [10]

Answer: 90

90 is a composite number because:

4 x 15 = 90

10 x 9 = 90

A composite number has more than two factors.

Hope this helps!

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3 years ago

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Thepotemich [5.8K]

Answer:

The answer is letter A.

Step-by-step explanation:

y=mx+b

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loris [4]

Answer:

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Step-by-step explanation:

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Find the value of a and b of a+root5 is (root5+root3)(root5-root3)

Aleksandr-060686 [28]

Given:

Consider the value of $a+b\sqrt{5}$ is $(\sqrt{5}+\sqrt{3})(\sqrt{5}-\sqrt{3})$ .

To find:

The values of a and b.

Solution:

According to the given information,

$a+b\sqrt{5}=(\sqrt{5}+\sqrt{3})(\sqrt{5}-\sqrt{3})$

$a+b\sqrt{5}=(\sqrt{5})^2-(\sqrt{3})^2$ $[\because a^2-b^2=(a-b)(a+b)]$

$a+b\sqrt{5}=5-3$

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It can be written as

$a+b\sqrt{5}=2+0\sqrt{5}$

On comparing both sides, we get

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Therefore, the value of a is 2 and the value of b is equal to 0.

3 0

3 years ago

What is 30 more than a number?

scZoUnD [109]

Answer:

there are varous answer to this problem but the equation is 30+n

just plug in any number for n and add 30.

Ex:

n=30

30+30=60

Ex:

n = 40

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Hoped that helped:P

4 0

2 years ago